A Sapphire, Emerald and Diamond Pendent Necklace-Brooch, by Cartier. Photo Christie's Image Ltd 2013

Designed as an openwork brilliant-cut diamond girandole pendant, set to the centre with a cushion-shaped sapphire weighing approximately 45.82 carats, suspending graduated sapphire and emerald drops, to the double-strand emerald bead neckchain with diamond roundel accents, joined at intervals by brilliant-cut diamond stylized links, the clasp further enhanced by a sapphire drop (with brooch fitting), mounted in platinum, 40.5 cm long, in red leather Cartier case. Estimate HK$8,000,000 – HK$12,000,000

Signed Cartier, no. 34391B 
Accompanied by report no. 0408151 dated 19 february 2013 from the Gübelin Gemmological Laboratory Stating that the 45.82 carat sapphire is of sri lanka (ceylon) origin, with no indications of heating

Christie's. HONG KONG MAGNIFICENT JEWELS. 28 May 2013. Convention Hall